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MIMO wireless communication system, MIMO signal detecting device and signal detecting method

A wireless communication system and signal detection technology, applied in the field of communication, can solve the problems of increased complexity of traversal search algorithm, unsuitable for practical application, etc.

Active Publication Date: 2015-07-22
SUZHOU NG NETWORKS
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Problems solved by technology

However, the complexity of the traversal search algorithm increases exponentially with the number of antennas and the order of the constellation diagram, so it is not suitable for practical applications.

Method used

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  • MIMO wireless communication system, MIMO signal detecting device and signal detecting method
  • MIMO wireless communication system, MIMO signal detecting device and signal detecting method
  • MIMO wireless communication system, MIMO signal detecting device and signal detecting method

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Embodiment Construction

[0051] In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] like figure 1 As shown, the MIMO signal detection device of the present invention includes: a search tree conversion unit 11 , a search unit 12 , a node selection unit 13 , a node calculation unit 14 , and a tree cut / update unit 15 .

[0053] The MIMO signal inspection device adopts a tree search algorithm, which i...

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Abstract

The invention provides an MIMO wireless communication system, an MIMO signal detecting device and a signal detecting method, wherein the MIMO signal detecting device comprises a search tree conversion unit, a search unit, a node selection unit, a node calculation unit and a three shearing / updating unit. Based on an optimal colored channel noise model, the complexity of the MIMO signal detecting device of the invention is relatively low while the performance thereof is almost equal to the performance of the ergodic search. The signal detecting method of the invention reduces search complexity under the condition of considering channel estimation error and ensures performance of communication simultaneously.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a MIMO wireless communication system and a signal detection device and method. Background technique [0002] The fourth generation mobile communication (4G) and the subsequent fifth generation mobile communication system (5G), such as 3GPP LTE (Long term evaluation) / LTE-Advanced. Multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) access schemes are used at the UE (user equipment) receiver to provide the downlink high data rate. In LTE, eg, UE category 6 (supporting 4x4 MIMO), the downlink can support data rates of up to 300 Mbps; and in LTE-A, eg, UE category 8, the downlink can support up to 3 Gbps (per gigabits per second), i.e. data rates up to Layer 8. [0003] 5G communication systems aim to increase frequency usage to provide higher data rates. For example, carrier aggregation (CA, carrier aggregation) or hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/20H04L25/02
Inventor 周广夏许文黄学民
Owner SUZHOU NG NETWORKS
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